39407397 has 8 divisors (see below), whose sum is σ = 52630560. Its totient is φ = 26227920.

The previous prime is 39407363. The next prime is 39407399. The reversal of 39407397 is 79370493.

39407397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39407397 - 2⁸ = 39407141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39407399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8754 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (6578820).

Almost surely, 2^39407397 is an apocalyptic number.

It is an amenable number.

39407397 is a deficient number, since it is larger than the sum of its proper divisors (13223163).

39407397 is a wasteful number, since it uses less digits than its factorization.

39407397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 39407397 is about 6277.5311229814. The cubic root of 39407397 is about 340.2978848428.

The spelling of 39407397 in words is "thirty-nine million, four hundred seven thousand, three hundred ninety-seven".